Wd40edaz-11u78b0 Not Spinning

[M041633n]

Please Help!

My HDD is not spinning but detects on USB to ATAPI
Will anybody able to help in solving this case

I cannot upload the PCB's picture from android

[fzabkar]

I cannot upload the PCB's picture from android

Then use something other than Android.

https://recuperodatos.com/sites/default/files/webform/donantes/06028-PCB.jpg

[M041633n]

Yeah this is it
2060-810011-001 REV P1

[fzabkar]

Check the fuses (marked with "s"). Also measure the voltages at the inputs and outputs of the "AYUN" e-fuse.

MP5094, Monolithic Power, dual channel 5V/12V current limit switch, marking AYUy, TSOT23-8:
https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP5094/document_id/4894/

[M041633n]

Colors in the picture are legend
Dark Blue .84v
Light Blue -0.00
Yellow .70v
Dark Yellow .73v
Orange 5.20v
White .62v
Black .95v
Red 12.04v

Attachments

[M041633n]

With Power

Red 5.20v
Yellow 12.04v

Without Power
Buzzer buzzes on both fuses marked with 's'

Attachments

[fzabkar]

It appears that both sides of the e-fuse are open-circuit. That's unusual.

Can you measure the resistance between ground and each of the dark blue and dark yellow pins (with power off)? I'm just trying to confirm that the outputs are not being overloaded by problems downstream.

[M041633n]

Dark Blue 6.16 Ohms
Dark Yellow 5.71 Ohms
Thank You!

[M041633n]

Sorry!
Dark Yellow is 3.30 Ohms

[fzabkar]

Both those resistances are much too low. That said, your meter would have to be very accurate to read the resistances to 2 decimal places. Are you sure you don't mean kilohms instead of ohms?

Could we see a photo of the whole PCB?

Did you do anything to cause the damage to your PCB, eg a misadventure with modular PSU cables?

[M041633n]

Yup its Kilo Ohms!

[M041633n]

Image of my pcb

https://imgur.com/a/UOSEBN7

[M041633n]

Yes Customer told it was fallen

[M041633n]

Any help??

[fzabkar]

Yes Customer told it was fallen

I don't understand why that would have caused an electronic fault. In any case, the HDD would most likely have an additional internal fault.

Measure the resistances between ground and each of the marked test points.

If the resistances are OK, then you should be able to safely bridge 5Vin to 5Vout, and 12Vin to 12Vout. However, I would be very wary of doing this in your case because your story doesn't make sense.

Attachments

e-fuse.jpg (91.5 KiB) Viewed 6245 times

5V_switched.jpg (35.24 KiB) Viewed 6245 times

backup_caps.jpg (129.69 KiB) Viewed 6245 times

[fzabkar]

Any help??

Any feedback?

Do you need instructions on how to measure a resistance?

[M041633n]

Sorry for the delay! Here you go

Attachments

5V_switched.jpg (22.97 KiB) Viewed 5988 times

backup_caps.jpg (85.51 KiB) Viewed 5988 times

e-fuse.jpg (64.15 KiB) Viewed 5988 times

[fzabkar]

I suspect that V3 might be grounded. If so, then this area is probably the negative supply for the preamp.

Otherwise everything looks OK. I would bridge 5Vin to 5Vout and 12Vin to 12Vout. This will bypass both sides of the e-fuse.

[M041633n]

Should I've to short it or what??

[fzabkar]

"Bridge" means "add a shorting link between the two points".